Earth's First Animals Barely Needed Any Oxygen

There's a longstanding theory which says oxygen-rich oceans were a key requirement for complex life to emerge on Earth. But a new study involving sea sponges upsets this notion, showing that primitive animals may have been able to survive with hardly any oxygen at all. » 2/18/14 9:00am 2/18/14 9:00am

Giant, Deep Sea Sponges Evolved Fiber Optic Exoskeletons

Click to view » 11/13/08 8:20am 11/13/08 8:20am This gigantic sea sponge has an exoskeleton made of glass rods, and each rod can grow up to a meter in length. In the deep sea, these massive sponges contain a menagerie of other tiny lifeforms, all dependent on their sea sponge hosts for something in short supply far under the water. They need light -…